Move functionality out from AudioFrame and into AudioFrameOperations.

webrtc/modules/utility/BUILD.gn

 # Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
 #
 # Use of this source code is governed by a BSD-style license
 # that can be found in the LICENSE file in the root of the source
 # tree. An additional intellectual property rights grant can be found
 # in the file PATENTS.  All contributing project authors may
 # be found in the AUTHORS file in the root of the source tree.
 
 import("../../build/webrtc.gni")
 
 rtc_static_library("utility") {
   sources = [
-    "include/audio_frame_operations.h",
     "include/file_player.h",
     "include/file_recorder.h",
     "include/helpers_android.h",
     "include/jvm_android.h",
     "include/process_thread.h",
-    "source/audio_frame_operations.cc",
     "source/coder.cc",
     "source/coder.h",
     "source/file_player.cc",
     "source/file_recorder.cc",
     "source/helpers_android.cc",
     "source/helpers_ios.mm",
     "source/jvm_android.cc",
     "source/process_thread_impl.cc",
     "source/process_thread_impl.h",
   ]
 
   if (!build_with_chromium && is_clang) {
     # Suppress warnings from the Chromium Clang plugin (bugs.webrtc.org/163).
     suppressed_configs += [ "//build/config/clang:find_bad_constructs" ]
   }
 
   if (is_ios) {
     libs = [ "AVFoundation.framework" ]
   }
 
   deps = [
     "../..:webrtc_common",
     "../../base:rtc_task_queue",
     "../../common_audio",
     "../../system_wrappers",
     "../audio_coding",
+    "../audio_coding:builtin_audio_decoder_factory",
+    "../audio_coding:rent_a_codec",
     "../media_file",
   ]
 }
+
+# Gyp target webrtc/modules.gyp:audio_frame_operations
+rtc_static_library("audio_frame_operations") {
+  sources = [
+    "include/audio_frame_operations.h",
+    "source/audio_frame_operations.cc",
+  ]
+
+  deps = [
+    "../..:webrtc_common",
+    "../../base:rtc_base_approved",
+  ]
+}